rust-lang / rust-lang/rust-clippy
Lint types the Deref to slice with no inherent as_ptr/as_mut
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- Dominant language
- Rust
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Description
See https://twitter.com/llogiq/status/1136868526776573952?s=09
The problem is that creating a slice asserts that the memory region is valid and not (mutably) borrowed, which may cause UB. An inherent method can avoid that.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No source file, test, or lint name is provided. Start by reproducing the reported behavior with cargo clippy and identify the lint handling a Deref to a slice without inherent as_ptr/as_mut methods. Done means the lint no longer recommends or accepts the unsafe slice-based behavior described in the issue, with coverage for the reported case.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100